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66637 (1999 RC213)
Classification: Main-belt Asteroid          SPK-ID: 2066637
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163973888612912 6.0059e-08  
a 2.629479327146063 1.738e-08 au
q 2.323414799401516 1.5873e-07 au
i 9.118086030237011 5.0217e-06 deg
node 310.4009581694896 4.1382e-05 deg
peri 53.91269820096577 4.6073e-05 deg
M 312.8572560668488 2.143e-05 deg
tp 2459204.446109077521
(2020-Dec-20.94610908)
9.3446e-05 TDB
period 1557.41039113079
4.26
1.5441e-05
4.228e-08
d
yr
n .2311529459737421 2.2918e-09 deg/d
Q 2.935543854890609 1.9403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      8061 days (22.07 yr)  
   first obs. used      1997-03-10  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57605  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:26:26  

Additional Information
 Earth MOID = 1.33311 au 
 Jupiter MOID = 2.52524 au 
 T_jup = 3.373 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO436247  
diameter diameter 5.653 km 0.385 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.026   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66637 (1999 RC213)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RC213 = 1997 EW22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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